Water-jacketed gear-casing for torpedoes.



R. DELAUNluf-BELIN;VILLE. WATER JAGKETED GEAR GASING FOR TORPBDBS.

APPLIOATION FILED JULY 20, 1914.

Patented. Mar. 2,1915.

WITNESSES z? f. www. 9H

ROBERT .DELANAY-BELLEVLLE, OF ST.DEN1S, FRANCE, ASSIGNOR T0 SOCIETE ATGNYl/IE DES ETABLISSEMENTS DELAUNAY-BELIEVILLE 0F ST,DENIS,

FRANCE, A CORPORATION OF FRANCE.

lViTER-JACKETED GEAR-GASNG -FGR TORPEDOES.

To all whom it may concern Be it known that Llonnn'r DELAUNAY! BELLEVILLE, a citizen of the French Republic, residing at St.-Denis, Department of the Seine, in France, have invented certain new and useful improvements in l/Vater-l'acketed Gearwasings for 'Torpedoesg andv I do hereby declare the 'following to be a full, clear, and exactl description of the invention, such as will enable others skilled in the art to which it appertains to make andv use the same.

The presenti invention relates to self propelled torpedoes actuated by turbines; the angular speed thereof being very great, it is necessary to interpose speed reduction gearing in order that the propellers may rotate at a suitable speed.

The invention has forits object a peculiar casing for the speed 1eduction gearing, constituting also the oil reservoir, and means for protecting it against the detrimental action of the gases at a high tcmperature which traverse the rear compart ments ot' the hull, by the circulation of water. A rotary pump provided With gearing is also used for conveying the oil under pressure to the bearings.

The accompanying drawing shows, by way et example, a method of arranging the speed reduction gearing casing in a torpedo` provided with a centrifugal pump in order to secure the general stability, of the kind set forth in m co-pending application Ser. No. 813,136, til d January 19, 1914.

Referring to the drawing, the shaft of the turbine carries at one end a small pinion B for driving" the gear C of the pump D in the opposite Adirection te the turbine. The Water pumped from the hull through the orifices E, is delivered by the pump l) to a diffusing channel H provided With venes, thence this water passes to the generator 'or to the heater (not shown in the drawing) through a pipe F prot" led with a valve (l oralternatively With a discharge valve having the desired resistance. This valve G permits of varying the output of the pump as desired, for the purpose vof obtaining a moment of inertia of the Wheel and ot the jets ot' Water, which will balanci the sum of moments of inertia of the same value but in the opposite direction, pro- Spec'ication of Letters atent.

Patented Mar., i?,

Application filed July 20, 1914. Serial No. 852,076.

duced by the other torpedo. V

rlhe driving turbine A is preferably previded with one disk only; its angular speed being very great it is necessary to interpose parts in motion in speed reduction gearing l in order that the propellers may rotate at a suitable speed. 'f

The gearing is 'inclosed Within a casing' d. comprising a double cover K forming a space L, Within which Water Which has been pumped from the exterior of 'the torpedo circulates through the small oriliceslil; the

partment P to reach the exhaust orifice.

The water may be supplied to the jacket by lany other means, if so desired, to protect the gearing against heating. l

' The casing J constitutes the oil reservoir Q; the level ll et the oil in the lower part of the easing is below the gearing l in order that the latter may not transmit there to the heat which it acquires through trice tion. The oil is delivered by a pump pro vided With gearing T, T which draws it .into the casingJ through the orifices R, and dis tributes it to the bearings through the conduits S.

I claim:

l. ln a torpedo, a gear casing adapted to completely incluse the gears therein, and a Water jacket associated therewith to protect the gears against the heat et the torpedo gases.

Q. The combination With the speed reduction gearing of a torpedo, of a casing completely inclosing the same, and a water jacket associated with said casing to the gears are protected against the heat of the ga ses ot the torpedo.

3. ln a torpedo, a lgear casingadapted toy completely inclose the gears therein and adapted to contain lubricant, a .pump for circulating said lubricant, and a Water jacket assoieated Withjsaid easing to protect the gears and pump against the heat of the gases in the torpedo.

fl. In a torpedo, a gear casing, a Water.

jacket surrounding the same, means to.ad-

i@ @www1 mit external Waiex' to said jacket Comprslo estmony whereof affix my signe.- ing a passage placing the interior of the fureu in presence of two witnesses. jacket n communication With the exterior ROBERT DELAUNAY-BELLEVILLE. of the torpedo, and means to discharge the \Vtnesses:

5` Water from the jacket after it has circulated DENNIS C. Poom,'J 1'.,

`through the same. 'EMIL KLoTz. 

